#pragma once
#include<iostream>
#include<string>
using namespace std;

class Student;
class Subject
{
    int score[3];
    const int SMath, SEng, SCpp;
public:
    Subject();
    Subject(int math, int eng, int cpp);
    void Display()const;
    void Input();
    void Insert();
    void Delete();
    friend class Student;
};